A sphere S rolls without slipping, moving with a constant speed on a plank P. The…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A sphere S rolls without slipping, moving with a constant speed on a plank P. The friction between the upper surface of P and the sphere is sufficient to prevent slipping, while the lower surface of P is smooth and rests on the ground. Initially, P is fixed to the ground by a pin N. If N is suddenly removed.
- S will begin to slip on P
- P will begin to move backwards
- the speed of S will decrease, and its angular velocity will increase
- there will be no change in the motion of S and P will still be at rest.
Answer
(D) there will be no change in the motion of S and P will still be at rest.
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